Patents by Inventor Robert Woodrow Gerlach

Robert Woodrow Gerlach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • TOOTH WHITENING STRIPS
    Publication number: 20120189680
    Abstract: A tooth whitening product is provided. The tooth whitening product includes film formed from a water hydratable polymer and a plasticizer. The film has a first side and a second side and a tooth whitening agent applied as coating to one side of the film.
    Type: Application
    Filed: April 4, 2012
    Publication date: July 26, 2012
    Inventors: Paul Albert Sagel, Robert Eugene Barron, Robert Woodrow Gerlach, Douglas Craig Scott, Stephen Francis McClanahan
  • Methods and products for analyzing gingival tissues
    Patent number: 8073212
    Abstract: A system and method employing image analysis may provide an objective measure of the state of gingival tissue health. A region of analysis on an image of gingival tissue may be divided into pixels. Each pixel may have an associated color made up of component R, G and B values. A user may obtain an objective measurement of oral cavity soft tissue health by determining an objective measurement of the component color values of a gingival tissue image region and performing statistical analysis on the color values.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: December 6, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Robert Woodrow Gerlach, Roger David Gibb, Michael Eugene Rubush, John Michael Dunavent, Stephen Francis McClanahan
  • Tooth Whitening Products
    Publication number: 20080226567
    Abstract: A tooth whitening product is provided. The tooth whitening product includes a material sized to cover at least a portion of the front surface of a plurality of teeth. A thin layer of a tooth whitening composition is disposed on the material. The whitening composition contains a peroxide active with a concentration greater than about 7.5% and less than about 20% by weight of the tooth whitening composition, and the tooth whitening composition has a peroxide density less than about 2.4 mg/cm2.
    Type: Application
    Filed: March 20, 2008
    Publication date: September 18, 2008
    Inventors: Paul Albert Sagel, Robert Woodrow Gerlach
  • Tooth whitening products
    Patent number: 6949240
    Abstract: A tooth whitening product is provided. The tooth whitening product includes a strip of material sized to cover the front surface of one or more teeth and soft tissue adjacent the front surface of the teeth. A thin layer of a tooth whitening composition is disposed on the strip of material. The whitening composition contains a peroxide active with a concentration greater than about 7.5% by weight of the tooth whitening composition, and the tooth whitening composition has a peroxide density less than about 1.3 mg/cm2.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 27, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Paul Albert Sagel, Robert Woodrow Gerlach
  • Tooth whitening strips
    Publication number: 20040120903
    Abstract: A tooth whitening product is provided. The tooth whitening product includes film formed from a water hydratable polymer and a plasticizer. The film has a first side and a second side and a tooth whitening agent applied as coating to one side of the film.
    Type: Application
    Filed: September 10, 2003
    Publication date: June 24, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Paul Albert Sagel, Robert Eugene Barron, Robert Woodrow Gerlach, Douglas Craig Scott, Stephen Francis McClanahan
  • Tooth whitening products
    Publication number: 20030219389
    Abstract: A tooth whitening product is provided. The tooth whitening product includes a strip of material sized to cover the front surface of one or more teeth and soft tissue adjacent the front surface of the teeth. A thin layer of a tooth whitening composition is disposed on the strip of material. The whitening composition contains a peroxide active with a concentration greater than about 7.5% by weight of the tooth whitening composition, and the tooth whitening composition has a peroxide density less than about 1.3 mg/cm2.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 27, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Paul Albert Sagel, Robert Woodrow Gerlach